Ignizio, James P.
Introduction to expert systems: the development and implementation of rule-based expert systems
Prentice-Hall, 1991
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Programming expert systems in OPS5: an introduction to rule-based programming
by Lee Brownston [and others]
Addison-Wesley, 1985
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Negoita, Constantin Virgil
Expert systems and fuzzy systems
The Benjamin Cumming Pub., 1985
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Alty, J.L.
Expert systems: concepts and examples
NCC Publications, 1984
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Expert systems: human issues
Chapman and Hall , 1990
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